What Ports Does SystemLink Use?

Updated Nov 12, 2018

Reported In


  • SystemLink Server
  • SystemLink Client

Issue Details

  • What ports do I need to have open on my SystemLink server to connect to a SystemLink client?
  • I am trying to connect a Linux RT client to my SystemLink server by configuring the server address in the System Settings for my target in NI MAX. After saving these settings, my client is never showing up in the list of Pending Systems in my server. 


SystemLink uses the following default ports for its communication protocols:
  • Web Application: 80 (insecure) or 443 (Secure TLS/SSL)
    • Enable the targets to install packages from the server
  • SaltStack: 4505 and 4506
    • Execute remote procedures on targets
  • RabbitMQ: 5673 and 15672 (Secure TLS/SSL)
    • Transferring files, tags, health data and test results
Ensure that Windows Firewall has Inbound Rules set up to allow communication on each port. If you are on a corporate network, you may need to work with your IT department to configure your corporate network firewall.